Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van doanh » toan doanh, van dong, van thanh
hieu sau » hieu su, hieu suat, tieu su
sau nhan » sat nhan, sau chan, sau ngan
nhan luc » nang luc
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
luc van » luoc van, luu van, duc van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. hieu sau nhan luc van doanh tai ((cua triet) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu sau nhan luc van doanh tai ((cua triet) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu sau nhan luc van doanh tai ((cua triet) or (cau tren))*.